Glomospira gordialis ( Jones and Parker, 1860 )

Benedetti, A, 2017, Eocene / Oligocene deep-water agglutinated foraminifers (DWAF) assemblages from the Madonie Mountains (Sicily, Southern Italy), Palaeontologia Electronica 20 (1), pp. 1-66 : 28

Glomospira gordialis ( Jones and Parker, 1860)

Figure 15.2

1860 Trochammina squamata Jones and Parker var. charoides ; Jones and Parker, p. 304.

1884 Ammodiscus gordialis Jones and Parker ; Brady, p. 333, pl. 38, figs. 7-9.

1995 Glomospira gordialis (Jones and Parker) ; Holbourn and Kaminski, p. 444, pl. 3, fig. 9.

2005 Glomospira gordialis (Jones and Parker) ; Kender, Kaminski, and Cieszkowski, p. 261, fig. 10P.

2009 Glomospira gordialis (Jones and Parker) ; Kender, Kaminski, and Jones, p. 496, pl. 2, fig. 11.

Material. 16 specimens from eight samples.

Description. Test free, small, circular in outline,

comprised of a small proloculus followed by a single undivided chamber trochospirally enrolled in the early whorls, then glomospirally coiled along a general plane; last whorl deviates from the general coiling, embracing previous stage. Wall smooth,

finely agglutinated; aperture simple opening at the end of the tube.

Distribution. Cosmopolitan species known from the Cretaceous to Recent ( Kender et al., 2009).

Figures

FIGURE 15. Scanning electron micrographs of Usbekistaniinae from the Caltavuturo Formation cropping out at Portella Colla. 1, Glomospira extendens Emiliani, 1954, PC11. 2, Glomospira gordialis (Jones and Parker, 1860), PC060604. 3-16, Repmanina charoides (Jones and Parker, 1860), PC060604 (3), PC060601 (4), PC060604 (5), PC060603 (6), PC060611 (7), PC060601 (8), PC060603 (9), PC060621 (10), PC060621 (11), PC060617 (12), PCs0 (13), PCs0 (14), PC060604 (15) and PCs0 (16). Scale bar equals 0.5 mm.